Have a big E....that just refuses to light without some assistance. It has a 3" exhaust on it that is a bit long, according to the calculations, if that matters. It will not light if you rely on just the ignitor. I have to either put a paper towel beneath the burn pot or throw a few pellets in the pot and hit them an ignitor fluid, light them and keep my toes crossed that it will light. Have always wondered about the ignitor being so far away from the burn pot, but the place I got it from assured me that is not an issue.....